Following are 2007 environmental, health and safety metrics for Duke Energy.
Health & Safety
| Health & Safety Performance |
2006 |
2007 |
| Lost Workday Case Rate (LWCR) |
0.35 |
0.26 |
| Total Incident Case Rate (TICR) |
1.51 |
1.25 |
Environmental
| Regulatory Citations (Includes Duke Energy International)* |
| |
2006 |
2007 |
| Citations |
13 |
12 |
| Fines/penalties (Dollars) |
$12,713 |
$15,500 |
| * |
Of the 12 citations, no fine was associated with eight. Three resulted in fines of $15,500. Finally, the State Environmental Agency of Parana, Brazil has alleged improper maintenance of existing reforested areas. Duke Energy International believes it has properly maintained the areas and will contest the proposed fine of $150,000. | |
| U.S. Reportable Oil Spills |
2006
| 2007 |
| Spills |
75 |
79 |
| Gallons |
3,251 |
28,864 |
| U.S. Coal Combustion Byproducts – CCB (Thousand Tons)*
|
2006 |
2007 |
| Total Coal Combustion Byproducts Produced |
5,530 |
6,015 |
| Permanently Disposed |
1,990 |
3,962 |
| Beneficial Use |
3,540 |
2,052 |
| * |
Generating plants owned and operated by Duke Energy. | |
| |
2005 |
2006 |
2007 |
| U.S. Sulfur Dioxide Emissions (Tons)* |
| |
844,500 |
812,600 |
684,000 |
| U.S. Nitrogen Oxides Emissions (Tons)* |
| |
160,400 |
148,600 |
131,000 |
| Carbon Dioxide Emissions (Thousand Tons)** |
| U.S. |
104,600 |
102,200 |
108,500 |
| Latin America |
2,600 |
3,000 |
3,100 |
| Total |
107,200 |
105,200 |
111,600 |
| * |
SO2 and NOx reported from U.S. electric generation based on Dec. 31, 2007 ownership share of stations. Combustion turbines not equipped with continuous emission monitors and facilities operated or owned by Duke Energy Generation Services are not included.
|
| ** |
CO2 reported from U.S. electric generation and Duke Energy International operations, and based on Dec. 31, 2007, ownership share of stations. CO2 emissions increased in 2007 versus 2006 due to U.S. electric generation being about 3.8% higher to meet increased customer demand. The additional generation came from coal and natural gas plants. | |
| Toxic Release Inventory Releases to the Environment (lbs) - Year 2008 |
| TOTAL DUKE ENERGY RELEASES |
53,629,966 |
| Total air releases |
39,382,312 |
| Total water releases |
234,225 |
| Total land releases |
13,895,459 |
| Total off-site transfers |
117,970 |
| |
|
| Hydrochloric Acid |
25,810,660 |
| Hydrogen Fluoride |
2,256,983 |
| Sulfuric Acid |
11,065,610 |
| Antimony |
37,370 |
| Arsenic |
441,930 |
| Barium |
4,646,014 |
| Beryllium |
91,788 |
| Chromium |
1,047,144 |
| Cobalt |
395,746 |
| Copper |
756,385 |
| Lead |
666,972 |
| Manganese |
1,432,484 |
| Mercury |
4,439 |
| Nickel |
1,203,304 |
| Selenium |
108,874 |
| Thallium |
77,099 |
| Vanadium |
1,799,678 |
| Zinc |
1,665,055 |
| Polycyclic Aromatic Compounds |
41 |
| Dioxin-like Compounds (*in grams) |
7* |
| Ammonia |
101,935 |
| Methylene Chloride |
10,324 |
| Styrene |
10,130 |
The Toxics Release Inventory (TRI) is a public database maintained by the U.S. Environmental Protection Agency (EPA) that contains data on the release of nearly 650 chemicals to the air, water and land. The purpose of the program is to provide people with information about chemicals used, processed or manufactured by facilities that operate in their communities. Duke Energy has reported TRI chemical releases from its fossil-fired electric generating facilities to EPA since 1999. Duke Energy’s TRI releases occur under the controls of air, water, and land permits, authorized by state and federal regulations that are designed to protect the environment and public health.
Approximately 75 percent of Duke’s TRI releases are to the air and consist mostly of hydrochloric acid, hydrogen fluoride and sulfuric acid. These chemicals are formed when the naturally occurring chlorine, sulfur, and fluorine in the coal reacts with air during the combustion process. Most of the remaining releases are to land and consist primarily of naturally occurring metals in the coal that remain in the coal ash and other coal combustion byproducts and are disposed of in permitted landfills or coal mines. Small fractions of Duke Energy’s TRI releases are to on-site permitted ash basins or are transferred off-site as part of the coal ash and other coal combustion byproducts that we recycle for various beneficial uses, including the manufacture of wallboard and as an additive in concrete.
The TRI program provides information on the quantity of releases, not the risks those releases may or may not present to the public. The TRI air releases that Duke Energy and the entire electric generating industry produce annually do not translate into large risks to the public. In a February 1998 report to Congress, EPA concluded that utility TRI air releases, though high in volume, present very little risk to the public. This finding was echoed by the Harvard Center for Risk Analysis, which reported in April 1999 that, "Although this industry will report large quantities of emissions, the resulting risk to public health is minimal."
